Add a thermometer to your digital multimeter
A digitalmultimeter is a very useful instrument that combines several measurement functions in one unit. A typical multimeter includes features of a variable-ra...
electrodes circuit
Measurements were made with a modified program, so that I could measure the applied voltage at the drive electrode as well as the voltage at the sense electrode...
Tachometer Circuit Using LM2907 LM2917 Frequency to Voltage Converter
This is a design circuit for tachometer circuit based on the LM2907 IC can be used to provide zero crossing datum to a digital system. At each zero crossing of ...
AC Ohmmeter ESR Meter Circuit
The ESR Meter is basically an AC Ohmmeter with special scales and protective circuitry. It provides a continuous reading of series resistance in electrolytic ca...
Digital Radar Speedometer Circuit
This circuit is use to Digital Radar Speedometer. It allows us to evaluate the speed of any object moving, especially cars and other vehicles. The speed is calc...
Noise Floor Measurement Circuit of PLL Frequency Synthesizers
Phase noise is a critical performance parameter of frequency synthesizers for wireless applications. RF system designers of phase modulated cellular systems, su...
High Impedance DC Voltmeter Circuit Using Op Amp
This is a design for a high impedance DC voltmeter. This circuit is design with built by uA741 IC. This IC is a op-amp non-inverting DC amplifier. The IC have n...
Low Power LED Battery Voltmeter
This is a low power voltmeter circuit that can be used with alternative energy systems that run on 12 and 24 volt batteries. The voltmeter is an expanded scale ...
Analog To Digital Converter
ADC is a circuit formed in a single functioning chip to change analog signal becomes digital signal. In general we apply chip ADC 8 beet to change analog signal...
DIY Satellite Finder Circuit
Ok, I have been looking for this circuit on line now for a while and I finally found it. (Thank you Kostas 711 in Patras City, Greece. ) Turns out it is a prett...
Full on transistor/fet curve tracer
Well since I learn fastest by doing (not exactly unique I guess) time to start my next trick. Adapting one of the many curve tracer schematics, probably Metzger...
Voltmeter
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a simple electrocardiogram board
Following the same idea as the Chipstein and Cornell designs, the circuit uses an instrumentation amplifier (the AD620) to take the voltage difference between t...
Current source not working in AD7792
The serial interface is working fine (Read the ID register correctly) but for some reason the on-chip current sources doesn`t seem to work. I have connected 470...
AD9284 default mode problem
Using AD9284 with the interface of adl5380 demodulator. I tried to work in default mode of AD9284. I have checked I and Q outputs of demodulator and everything ...
Analog to Digital Conversion
To be able to implement analog to digital conversion using the ADC0804LCN 8-bit A/D converter. You will design a circuit and program the chip so that when an an...
ESR-Meter
2 versions. First is one based on your schematics, except that I`ve changed those smd capacitors for standard through hole ones. Second one is somewhat modified...
Digital voltmeter using ICL7107
The circuit given here is of a very useful and accurate digital voltmeter with LED display using the ICL7107 from Intersil. The ICL7107 is a high performance, l...
RACAL-DANA MODEL 9904 FREQUENCY METER A3 CIRCUIT
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Electrical Electronic Instrumentation Project
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